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Java example source code file (LongType.java)
The LongType.java Java example source code/* * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.nashorn.internal.codegen.types; import static jdk.internal.org.objectweb.asm.Opcodes.L2D; import static jdk.internal.org.objectweb.asm.Opcodes.L2I; import static jdk.internal.org.objectweb.asm.Opcodes.LADD; import static jdk.internal.org.objectweb.asm.Opcodes.LAND; import static jdk.internal.org.objectweb.asm.Opcodes.LCMP; import static jdk.internal.org.objectweb.asm.Opcodes.LCONST_0; import static jdk.internal.org.objectweb.asm.Opcodes.LCONST_1; import static jdk.internal.org.objectweb.asm.Opcodes.LDIV; import static jdk.internal.org.objectweb.asm.Opcodes.LLOAD; import static jdk.internal.org.objectweb.asm.Opcodes.LMUL; import static jdk.internal.org.objectweb.asm.Opcodes.LNEG; import static jdk.internal.org.objectweb.asm.Opcodes.LOR; import static jdk.internal.org.objectweb.asm.Opcodes.LREM; import static jdk.internal.org.objectweb.asm.Opcodes.LRETURN; import static jdk.internal.org.objectweb.asm.Opcodes.LSHL; import static jdk.internal.org.objectweb.asm.Opcodes.LSHR; import static jdk.internal.org.objectweb.asm.Opcodes.LSTORE; import static jdk.internal.org.objectweb.asm.Opcodes.LSUB; import static jdk.internal.org.objectweb.asm.Opcodes.LUSHR; import static jdk.internal.org.objectweb.asm.Opcodes.LXOR; import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup; import jdk.internal.org.objectweb.asm.MethodVisitor; import jdk.nashorn.internal.codegen.CompilerConstants; import jdk.nashorn.internal.codegen.ObjectClassGenerator; /** * Type class: LONG */ class LongType extends BitwiseType { private static final CompilerConstants.Call VALUE_OF = staticCallNoLookup(Long.class, "valueOf", Long.class, long.class); protected LongType(final String name) { super(name, long.class, 3, 2); } protected LongType() { this("long"); } @Override public Type nextWider() { return NUMBER; } @Override public Class<?> getBoxedType() { return Long.class; } @Override public Type cmp(final MethodVisitor method) { method.visitInsn(LCMP); return INT; } @Override public Type load(final MethodVisitor method, final int slot) { assert slot != -1; method.visitVarInsn(LLOAD, slot); return LONG; } @Override public void store(final MethodVisitor method, final int slot) { assert slot != -1; method.visitVarInsn(LSTORE, slot); } @Override public Type ldc(final MethodVisitor method, final Object c) { assert c instanceof Long; final long value = (Long) c; if (value == 0L) { method.visitInsn(LCONST_0); } else if (value == 1L) { method.visitInsn(LCONST_1); } else { method.visitLdcInsn(c); } return Type.LONG; } @Override public Type convert(final MethodVisitor method, final Type to) { if (isEquivalentTo(to)) { return to; } if (to.isNumber()) { method.visitInsn(L2D); } else if (to.isInteger()) { method.visitInsn(L2I); } else if (to.isBoolean()) { method.visitInsn(L2I); } else if (to.isObject()) { invokeStatic(method, VALUE_OF); } else { assert false : "Illegal conversion " + this + " -> " + to; } return to; } @Override public Type add(final MethodVisitor method) { method.visitInsn(LADD); return LONG; } @Override public Type sub(final MethodVisitor method) { method.visitInsn(LSUB); return LONG; } @Override public Type mul(final MethodVisitor method) { method.visitInsn(LMUL); return LONG; } @Override public Type div(final MethodVisitor method) { method.visitInsn(LDIV); return LONG; } @Override public Type rem(final MethodVisitor method) { method.visitInsn(LREM); return LONG; } @Override public Type shr(final MethodVisitor method) { method.visitInsn(LUSHR); return LONG; } @Override public Type sar(final MethodVisitor method) { method.visitInsn(LSHR); return LONG; } @Override public Type shl(final MethodVisitor method) { method.visitInsn(LSHL); return LONG; } @Override public Type and(final MethodVisitor method) { method.visitInsn(LAND); return LONG; } @Override public Type or(final MethodVisitor method) { method.visitInsn(LOR); return LONG; } @Override public Type xor(final MethodVisitor method) { method.visitInsn(LXOR); return LONG; } @Override public Type neg(final MethodVisitor method) { method.visitInsn(LNEG); return LONG; } @Override public void _return(final MethodVisitor method) { method.visitInsn(LRETURN); } @Override public Type loadUndefined(final MethodVisitor method) { method.visitLdcInsn(ObjectClassGenerator.UNDEFINED_LONG); return LONG; } @Override public Type cmp(final MethodVisitor method, final boolean isCmpG) { return cmp(method); } } Other Java examples (source code examples)Here is a short list of links related to this Java LongType.java source code file: |
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